CN217632841U

CN217632841U - Suction and exhaust pipe of compressor, compressor formed by suction and exhaust pipe and air conditioner

Info

Publication number: CN217632841U
Application number: CN202220324125.XU
Authority: CN
Inventors: 禹威
Original assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Landa Compressor Co Ltd; Zhengzhou Landa Compressor Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Landa Compressor Co Ltd; Zhengzhou Landa Compressor Co Ltd
Priority date: 2022-02-17
Filing date: 2022-02-17
Publication date: 2022-10-21
Anticipated expiration: 2032-02-17

Abstract

The utility model discloses a compressor suction and exhaust pipe of compressor and air conditioner that form thereof, include: the liquid separation bottle is provided with an opening; the inner diameter of two ends of the metal tube is larger than the inner diameter of the middle part of the metal tube; the threaded connecting sleeve is positioned in the middle of the metal pipe; the bottom end of the metal tube is fixed at the opening inside the liquid separating bottle. The utility model provides a pair of suction and exhaust pipe of compressor and compressor that forms thereof through resistance welding and thread connection cover's design, avoids suction and exhaust pipe's secondary heating, ensures suction and exhaust pipe and divides liquid bottle opening part firm in connection, avoids dividing the liquid bottle to leak.

Description

Suction and exhaust pipe of compressor, compressor formed by suction and exhaust pipe and air conditioner

Technical Field

The utility model relates to a compressor field of connecting especially relates to the compressor and the air conditioner of inhaling exhaust pipe and formation of compressor.

Background

The breathing pipe and the blast pipe of compressor are the copper pipe in the trade at present, are convenient for and air conditioning system pipeline through the welding of flame brazing, adopt the copper pipe to mainly have following problem through the welded connected mode of flame brazing: the pipeline can be blocked due to too fast flowing of the solder in the welding process, and the pipeline can be leaked due to too slow flowing of the solder or uneven distribution of the solder.

According to statistics, the leakage between the air suction pipe of the compressor and the upper cover of the liquid separation bottle accounts for more than 80% of the leakage of the liquid separation bottle, the main reason is that the air suction pipe of the liquid separation bottle and the upper cover of the liquid separation bottle are welded through high-temperature brazing, when the air suction pipe and the air conditioner pipe are welded by using flame welding when the compressor is assembled on an air conditioner, the air suction pipe needs to be heated again, the front and the back of the air suction pipe are subjected to high-temperature heating twice, particularly in the second heating process, the high-temperature flame welding causes the welding material between the air suction pipe and the upper cover of the liquid separation bottle to melt to generate air holes, or the original small air holes in the air suction pipe are enlarged, and further the leakage is caused.

SUMMERY OF THE UTILITY MODEL

The present invention aims to solve one of the problems in the related art at least to a certain extent. Therefore, the utility model aims to provide a compressor and air conditioner of suction and exhaust pipe of compressor and formation avoids suction and exhaust pipe's secondary heating through resistance welding and the design of thread connection cover, ensures suction and exhaust pipe and liquid separation bottle opening part firm in connection, avoids the liquid separation bottle to leak.

In order to achieve the above object, the present invention provides a suction and exhaust pipe of a compressor, including:

the liquid separation bottle is provided with an opening;

the inner diameters of two ends of the metal pipe are larger than the inner diameter of the middle part of the metal pipe;

the threaded connecting sleeve is positioned in the middle of the metal pipe;

the bottom end of the metal tube is fixed at the opening inside the liquid separating bottle.

Furthermore, the metal pipe is a steel pipe, and the bottom end of the steel pipe is connected with the opening inside the liquid separating bottle through resistance welding.

Further, the metal pipe is an iron pipe, and the bottom end of the iron pipe is connected with an opening inside the liquid separating bottle through resistance welding.

Furthermore, the thread connecting sleeve is nested outside the metal pipe, the top end inner diameter of the thread connecting sleeve is larger than the bottom end inner diameter, and the top end of the thread connecting sleeve is provided with internal threads.

Furthermore, the inner diameter of the bottom end of the threaded connecting sleeve is larger than the middle outer diameter of the metal pipe and smaller than the outer diameters of two ends of the metal pipe.

Further, still include the adapter, the adapter includes intermediate part and symmetric distribution at the connecting portion at intermediate part both ends, and the connecting portion outside is provided with the external screw thread, one of them the external screw thread of connecting portion with the internal thread looks adaptation on the top of thread connection cover.

A compressor comprising the suction and discharge pipe as set forth in any one of the above.

An air conditioner comprising the air intake/exhaust pipe of any one of the above.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:

(1) The inner diameter of the bottom end and the inner diameter of the top end of the metal tube are both larger than the middle inner diameter, and the bottom end of the metal tube is embedded into an opening in the liquid separation bottle and is welded and fixed by adopting resistance welding; and the inner diameter of the bottom end is slightly larger than the inner diameter of the opening of the liquid separation bottle, and the overlapped part of the bottom end of the metal tube and the opening is welded and fixed to ensure welding and fastening. Compare vertical copper tubular construction among the prior art, the opening part of this application tubular metal resonator bottom is great with the overlapping area of liquid separation bottle, is favorable to the welded fastness.

(2) The nested screw thread adapter sleeve that has between the top of tubular metal resonator and the bottom in this application, the screw thread adapter sleeve is located between the tubular metal resonator both ends opening, can not the slippage, and the opening at tubular metal resonator both ends here refers to the part that the tubular metal resonator both ends internal diameter is greater than middle internal diameter, and it is through carrying out the flaring to the tubular metal resonator in preparation process and get. This application utilizes the thread connection cover to carry out the connection of taking over outward, and is not only quick convenient, and just lies in the opening at tubular metal resonator both ends through the setting, can ensure that the thread connection cover can not drop from the tubular metal resonator.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.

In the drawings:

FIG. 1 is a schematic view of a structure of a suction/exhaust pipe in the prior art;

FIG. 2 is a schematic view of the structure of the air intake and exhaust pipe of the present invention;

FIG. 3 is a schematic structural view of the suction and exhaust pipes connected to the external connection pipe through the adapter;

FIG. 4 is a schematic view of the manufacturing process of the middle suction/exhaust pipe of the present invention;

reference numerals: 1. a liquid separating bottle; 2. a metal tube; 3. an air suction pipe; 4. an exhaust pipe; 5. a threaded connection sleeve; 6. an adapter; 61. a connecting portion; 62. an intermediate portion; 7. and (4) an external connecting pipe.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "upper", "lower", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", and the like are configured and operated in specific directions based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present technical solution, and do not indicate that the device or element referred to must have a specific direction, and thus, should not be construed as limiting the present invention.

It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. The terms "first", "second", "third", etc. are only for convenience in describing the present technical solution, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the following description, for purposes of explanation and not limitation, specific details are set forth such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

Referring to fig. 1-4, the present invention provides a suction/exhaust pipe of a compressor, comprising: the liquid separation bottle 1 is provided with an opening; the metal tube 2 is positioned at the opening of the liquid separation bottle 1, and the inner diameters of two ends of the metal tube 2 are larger than the inner diameter of the middle part; the threaded connecting sleeve 5 is positioned in the middle of the metal pipe 2; the bottom end of the metal tube 2 is fixed at the opening inside the liquid separation bottle 1.

As shown in attached figure 1, in the prior art, an air suction pipe 3 and an air exhaust pipe 4 of a compressor are both copper pipes, the bottom ends of the copper pipes are fixedly connected with an inner opening of a liquid separation bottle 1 through brazing, and the top ends of the copper pipes are fixedly connected with an external connecting pipe 7 through brazing; the air suction and exhaust pipe needs to be welded at high temperature twice, and in the process of welding for the second time, the welding flux at the welding position for the first time is easy to melt, and then the liquid separation bottle 1 is easy to leak. Meanwhile, in the prior art, the inner diameter of the copper pipe is equal everywhere, when the bottom end of the copper pipe is fixedly brazed with the liquid separation bottle 1, the vertical copper pipe extends into the opening inside the liquid separation bottle 1, the contact position of the vertical copper pipe is small, and the copper pipe is not favorable for brazing firmness.

The inner diameter of the bottom end and the inner diameter of the top end of a metal tube 2 are both larger than the middle inner diameter, and the bottom end of the metal tube is embedded into an opening inside a liquid separation bottle 1 and is welded and fixed by adopting resistance welding; and the inner diameter of the bottom end is slightly larger than the inner diameter of the opening of the liquid separation bottle 1, and the overlapped part of the bottom end of the metal tube 2 and the opening is welded and fixed to ensure welding and fastening. Compare vertical copper tubular construction among the prior art, the opening part of this application tubular metal resonator 2 bottom is great with the overlapping area of liquid separation bottle 1, is favorable to the welded fastness.

Nested have screw thread adapter sleeve 5 between the top and the bottom of tubular metal resonator 2 in this application, screw thread adapter sleeve 5 is located between the opening of 2 both ends of tubular metal resonator, can not the slippage, and the opening at 2 both ends of tubular metal resonator here refers to the part that 2 both ends internal diameters of tubular metal resonator are greater than middle internal diameter, and it is through carrying out the flaring to tubular metal resonator 2 in the preparation process and get. This application utilizes threaded connection sleeve 5 to carry out the connection of taking over 7 outward, and is not only convenient fast, and lies in the opening at tubular metal resonator 2 both ends through the setting, can ensure that threaded connection sleeve 5 can not follow tubular metal resonator 2 and drop.

Only need carry out welded fastening to tubular metal resonator 2 and branch liquid bottle 1 junction in this application, its top carries out the threaded connection who takes over 7 through the threaded connection head of nestification on tubular metal resonator 2, compares among the prior art copper pipe top and bottom and all through welded connection's mode, and the suction-exhaust pipe need not through second high temperature welding in this application, is favorable to improving the fastness of weld, prevents to divide liquid bottle 1 to take place to leak. Simultaneously, the welding department is flaring structure in this application, and its and the overlapping area of the internal opening part of liquid separation bottle 1 is great, and the solder evenly distributed of being convenient for is favorable to improving the fastness of welding department. In this application threaded connection sleeve 5 nestification is in the tubular metal resonator 2 outside, and the both ends of tubular metal resonator 2 set up the great opening of internal diameter, through the internal diameter that sets up threaded connection sleeve 5 and tubular metal resonator 2's external diameter, ensures that threaded connection sleeve 5 can not follow landing in tubular metal resonator 2.

As a preferred example, the metal pipe 2 in this application is a steel pipe or an iron pipe. The compressor suction and exhaust pipe in the prior art generally adopts a copper pipe or a copper-plated pipe with the same wall thickness as the whole pipe, and the compressor suction and exhaust pipe is welded at the opening of the liquid separating bottle 1 and an external connecting pipe 7 in an air conditioner by adopting silver solder flame brazing or high-frequency brazing.

In the application, the metal pipe 2 is a steel pipe or an iron pipe, so that compared with a copper pipe, the cost of the air suction and exhaust pipe is reduced; meanwhile, the resistance welding is adopted to replace the original flame brazing, so that the emission of a large amount of gas in the brazing process is avoided, and the energy conservation and emission reduction are facilitated.

The 2 outsides of tubular metal resonator in this application need nested thread connection cover 5, and thread connection cover 5 can't avoid having inward pressure to tubular metal resonator 2 when connecting outer pipe 7, adopts steel pipe or iron pipe in this application, and its hardness is great, can support the fixed pressure of thread connection cover 5, ensures that thread connection cover 5 and outer pipe 7 realize fastening connection.

Adopt steel pipe or iron pipe in this application, also be convenient for in the operation of flaring in-process.

In the application, the threaded connecting sleeve 5 is nested outside the metal pipe 2, the inner diameter of the top end of the threaded connecting sleeve 5 is larger than that of the bottom end of the threaded connecting sleeve 5, and the top end of the threaded connecting sleeve 5 is provided with internal threads; the inner diameter of the bottom end of the threaded connecting sleeve 5 is larger than the middle outer diameter of the metal pipe 2 and smaller than the outer diameters of the two ends of the metal pipe 2. All of this application divide into two parts that the internal diameter is unequal with thread connecting sleeve 5, mainly for the convenience is connected outer takeover 7, can firmly nest in the tubular metal resonator 2 outside for thread connecting sleeve 5 simultaneously, can not follow tubular metal resonator 2 both ends opening part slippage.

This application is for protecting tubular metal resonator 2 and outer 7 junctions of taking over not receive external damage, the internal diameter that has set up 5 tops of thread connection cover is greater than the bottom internal diameter, and be greater than tubular metal resonator 2's external diameter, can be provided with the internal thread on 5 tops of thread connection cover like this, make the screw thread that is used for connecting built-in, ensure that 5 inside of thread connection cover are connected with outer 7 of taking over, and hide the junction in 5 inside of thread connection cover, the protection connector.

This application can also set up adapter 6, and adapter 6 includes that intermediate part 62 and symmetric distribution are provided with the external screw thread at the connecting portion 61 at intermediate part 62 both ends in the connecting portion 61 outside, the external screw thread in one of them connecting portion 61 outside and the internal thread looks adaptation on 5 tops of thread connection cover, the external screw thread in the other connecting portion 61 outside and external pipe 7 in the screw thread looks adaptation.

The air suction and exhaust pipe in the application can be prepared by the following steps:

preparing a metal tube 2; the metal pipe 2 is a steel pipe or an iron pipe, and can be a specially-made seamless steel pipe for example;

cutting the metal pipe 2 into corresponding sizes of the air suction pipe or the exhaust pipe;

a threaded connecting sleeve 5 is nested on the outer side of the metal pipe 2;

flaring the metal pipe 2 to enable the inner diameters of two ends of the metal pipe 2 to be larger than the inner diameter of the middle part;

the bottom end of the metal tube 2 extends into the opening inside the liquid separation bottle 1 for resistance welding fixation.

After the metal pipe 2 is prepared, the connection mode of the metal pipe and the external connection pipe 7 in the air conditioner is as follows:

an air suction pipe 3 in the compressor is butted with an external connecting pipe 7 in the air conditioner, wherein the external connecting pipe 7 refers to an air suction pipeline in the air conditioner; an external thread matched with the internal thread at the top end of the thread connecting sleeve 5 is arranged in the air suction pipeline in the air conditioner, the internal thread in the thread connecting sleeve 5 and the external thread in the external connecting pipe 7 are screwed, and the air suction pipe 3 of the compressor is fixed with the air suction pipeline joint of the air conditioner to realize connection.

Or the adapter 6 can be connected in the threaded connection sleeve 5, the adapter 6 comprises an intermediate part 62 and connection parts 61 symmetrically distributed at two ends of the intermediate part 62, external threads are arranged on the outer sides of the connection parts 61, the external threads on the outer side of one of the connection parts 61 are matched with the internal threads at the top end of the threaded connection sleeve 5, and the external threads on the outer side of the other connection part 61 are matched with the threads in the outer pipe 7. The air suction pipeline in the air conditioner is provided with a thread matched with the external thread of the connecting part 61, one connecting part 61 of the adapter 6 is connected with a thread connecting sleeve at the top end of the metal pipe, the connecting part 61 at the other end of the other connecting part 61 is connected with the air suction pipeline in the air conditioner, and the thread connecting sleeve 5 in the air suction pipeline of the compressor is fixed with the air suction pipeline connector of the air conditioner through the adapter 6 to realize connection.

The application also provides a compressor, which comprises the suction and exhaust pipe.

The application also provides an air conditioner, which comprises the air suction and exhaust pipe and the compressor structure.

It is to be understood that the foregoing examples merely represent preferred embodiments of the present invention, and that the description thereof is more specific and detailed, but not intended to limit the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. A suction/discharge pipe of a compressor, comprising:

the liquid separation bottle is provided with an opening;

the inner diameter of two ends of the metal tube is larger than the inner diameter of the middle part of the metal tube;

the threaded connecting sleeve is positioned in the middle of the metal pipe;

2. The suction and exhaust pipe of a compressor according to claim 1, wherein the metal pipe is a steel pipe, and the bottom end of the steel pipe is connected to the opening inside the liquid separation bottle by resistance welding.

3. The suction and exhaust pipe of the compressor according to claim 1, wherein the metal pipe is an iron pipe, and a bottom end of the iron pipe is connected to the opening inside the liquid separation bottle by resistance welding.

4. The suction and exhaust pipe of a compressor as claimed in claim 1, wherein the threaded connection sleeve is nested outside the metal pipe, the top end inner diameter of the threaded connection sleeve is larger than the bottom end inner diameter, and the top end of the threaded connection sleeve is provided with internal threads.

5. The suction/discharge pipe of a compressor as claimed in claim 4, wherein the inner diameter of the bottom end of the screw connection sleeve is larger than the middle outer diameter of the metal pipe and smaller than the outer diameters of both ends of the metal pipe.

6. The suction and exhaust pipe of a compressor as claimed in claim 1, further comprising an adapter, wherein the adapter includes a middle portion and connecting portions symmetrically disposed at two ends of the middle portion, and external threads are disposed on outer sides of the connecting portions, and the external threads of one of the connecting portions are adapted to the internal threads on the top end of the threaded connecting sleeve.

7. A compressor comprising the suction/discharge pipe as claimed in any one of claims 1 to 6.

8. An air conditioner characterized by comprising the suction and exhaust duct according to any one of claims 1 to 6.